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51 7 51 8 51 9 52 0 52 1 52 2 52 3 52 4 52 5 52 6 52 7 52 8 52 9 53 0 53 1 53 2 53 3 53 4 53 5 53 6 53 7 53 8 53 9 54 0 54 1 54 2 54 3 54 4 54 5 54 6 54 7 2282 2281 2280 2279 2278 2277 2276 2275 2274 2273 2272 2271 2270 2269 2268 2267 2266 2265 2264 2263 2262 2261 2260 2259 2258 2257 2256 2255 2254 2253

= Free Coordinate    = Occupied(Single Region)     = Occupied (Var Region)     = Center of the grid